| 摘要 |
PROBLEM TO BE SOLVED: To prevent water, oxygen, etc., from entering and to minimize deterioration of performance over a long period by forming a laminate body wherein a plurality of weather-proof base material layers, provided with a deposition film of inorganic oxide are superposed through a dissolving extruding adherent resin layer. SOLUTION: A deposition film 2a of inorganic oxide by a physical vapor growth method or a chemical vapor growth method is provided to one surface of a weather- proof base material layer 1. Two or more weather-proof base material layers 1 provided with the deposition film 2a of inorganic oxide are further laminated, opposed to a surface of the deposition film 2a of inorganic oxide of one weather-proof base material layer 1 provided with the deposition film 2a of inorganic oxide and a surface of the weather-proof base material layer 1 of the other weather-proof base material layer 1 provided with the inorganic oxide 2a. A superposed laminate 4a is formed, interposing a dissolving extruding adherent resin layer 3 between the layers. It is desirable to use the weather-proof base material layer 1 which is superior in mechanical or chemical or physical strength, superior in various solidities such as weather resistance and heat resistance, especially in weather resistance and prevents water, oxygen, etc., from entering. |
